Relax, NO ONE KNOWS what barrel life will, or won't be, in a particular barrel, as was pointed out in that thread of Scootertrash's. Since you're not using it up quick in a PD patch, it should last quite awhile longer, assuming the steel is good (and we have to assume that, without any evidence to the contrary, right?) Barrels ARE going to get used up, it just happens that way. It's not going to happen overnight, especially the way you're using it.
They are threaded for a reason, after all
![Mr. Green :mrgreen:](./images/smilies/icon_mrgreen.gif)
and can be replaced easily enough. We have no reason to think that ST's barrel was abused in any way, his posts over the last couple of years seem to point to a very responsible and careful user of his tools, not a serial abuser like me
![lol :lol:](./images/smilies/lol.gif)
Factory barrels aren't made to last forever, in any case.
Build a man a fire, and he's warm for a day. Set a man on fire and he's warm for the rest of his life!